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Ingredients
- 2 tablespoons unsalted butter
- 2 cups heavy cream
- 1/4 teaspoon ground nutmeg
- 1/2 teaspoon pepper
- 6 ounces grated Gruyere cheese
- 1 medium onion, finely chopped
- 2 cups whole milk
- 1 teaspoon fresh thyme leaves
- 1 1/2 teaspoon salt
- 4 pounds russet potatoes, peeled and sliced
Preparation
Step 1
Heat oven to 375 degrees. Grease a shallow 3 quart baking dish. I used a 9x13. In a large saucepan, melt butter over medium-high heat. Add onion and cook, stirring often, until softened, 5-7 minutes. Add cream, milk, salt, pepper, nutmeg, thyme and bring to a simmer.
Add potatoes to saucepan, and simmer, stirring occasionally until tender - 20-25 minutes.
Transfer potato mixture to prepared baking dish, sprinkle with Guyere.
Bake until bubbling and golden brown 20-25 minutes.